1 /* 2 * kexec.h for kexec 3 * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 4 * 5 * This source code is licensed under the GNU General Public License, 6 * Version 2. See the file COPYING for more details. 7 */ 8 9 #ifndef _MIPS_KEXEC 10 # define _MIPS_KEXEC 11 12 #include <asm/stacktrace.h> 13 14 /* Maximum physical address we can use pages from */ 15 #define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000) 16 /* Maximum address we can reach in physical address mode */ 17 #define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000) 18 /* Maximum address we can use for the control code buffer */ 19 #define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000) 20 /* Reserve 3*4096 bytes for board-specific info */ 21 #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) 22 23 /* The native architecture */ 24 #define KEXEC_ARCH KEXEC_ARCH_MIPS 25 #define MAX_NOTE_BYTES 1024 26 27 static inline void crash_setup_regs(struct pt_regs *newregs, 28 struct pt_regs *oldregs) 29 { 30 if (oldregs) 31 memcpy(newregs, oldregs, sizeof(*newregs)); 32 else 33 prepare_frametrace(newregs); 34 } 35 36 #ifdef CONFIG_KEXEC 37 struct kimage; 38 extern unsigned long kexec_args[4]; 39 extern int (*_machine_kexec_prepare)(struct kimage *); 40 extern void (*_machine_kexec_shutdown)(void); 41 extern void (*_machine_crash_shutdown)(struct pt_regs *regs); 42 extern void default_machine_crash_shutdown(struct pt_regs *regs); 43 #ifdef CONFIG_SMP 44 extern const unsigned char kexec_smp_wait[]; 45 extern unsigned long secondary_kexec_args[4]; 46 extern void (*relocated_kexec_smp_wait) (void *); 47 extern atomic_t kexec_ready_to_reboot; 48 #endif 49 #endif 50 51 #endif /* !_MIPS_KEXEC */ 52